A/C Blower Motor Speed Control
WARNING: This page is about a different car, the 2005 Mercury Sable and 2005 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
The A/C blower motor speed control (19E624) is located under the A/C evaporator housing, near the blower motor (19805).
- The function of the A/C blower motor speed control is to convert low power signals from the RCC module to a high current, variable ground feed for the blower motor.
- A/C blower motor speed is infinitely variable and is controlled by the RCC module software.
- A delay function provides a gradual increase or decrease in blower motor speed under all conditions.